MONTEREY PIPELINE & PIPE BRIDGE

CRAIG SMITH, PE - AECOM

LAWRENCE TAM, PE - AECOM

TIM O’HALLORAN, PE – CALIFORNIA AMERICAN WATER

AGENDA

1. A little History

2. Monterey Area Water Providers

3. Monterey Peninsula Water Supply Project

4. Monterey Pipeline

5. Hwy 68 Pipe Bridge

6. Recognition

7. Questions

A LITTLE HISTORY, 1 OF 2

• ~3300 years ago: Esselen tribal settlement in the region.

• 1600-1700s: European colonialists and missionaries arrive.

• 1921: San Clemente Dam

• 1949: Los Padres Dam

• 1966: California American Water is created.

• 1975: CPUC orders a moratorium on new water hookups on the Peninsula.

• 1979: Environmentalists and government officials focused on conservation and restoration of the Carmel River and its ecology.

• 1994: The U.S. Army closes down Fort Ord.

• 1995: SWRCB issues Order 95-10, requiring Cal Am to begin conservation, pursue a legal water source and ease pressure on the Carmel River.

A LITTLE HISTORY, 2 OF 2

• 2010: Regional Water Project organized.

• 2012: Monterey Peninsula Water Supply Project (MPWSP) organized.

• 2015: San Clemente Dam removal complete.

• Sept. 2018: CPUC approves Cal Am’s plan to build a desalination plant.

• Nov. 2018: Measure J passes, directing the MPWMD to acquire control of the Cal Am-owned water system “if and when feasible.”

• Oct. 4, 2019: Pure Water Monterey wastewater recycling plant opens.

• March 2020: CCC is scheduled to vote on Cal Am’s permit.

• Dec. 31, 2021: The cease and desist deadline for Carmel River pumping.

CALIFORNIA AMERICAN WATER - MONTEREY

MONTEREY AREA WATER PROVIDERS

MONTEREY ONE WATER RECYCLED WATER

SEASIDE GROUNDWATER BASIN AQUIFER STORAGE & RECOVERY (ASR)

MONTEREY PENINSULA WATER SUPPLY PROJECT (MPWSP) OVERVIEW

COMBINING NEW FACILITIES WITH EXISTING FACILITIES

CAW Desal Plant

Wastewater flows

MRWPCA WWTP

GWR ADVANCED TREATMENT

Growers

GWR ASR Injection

Wells

Seaside Groundwater

Basin

CAW Water Distribution System

CAW Seaside

Wells (non-ASR)

Seaside Monterey

Pacific Grove

Pebble Beach

Carmel Carmel Valley

CAW Carmel River Wells

CAW Water Distribution

System

Forest Lake Reservoirs

Crest Tank & 16” Pipeline

36” Transfer Pipeline

Monterey (ASR) Pump Station

MPWSP GWR ASR SYSTEM SCHEMATIC BASELINE SCHEMATIC

~560’ HGL

~435’ HGL

~305’ HGL

Existing PRV Set ~310’ HGL

42”

Sup

ply

Pip

eli

ne

Slant Well Intake System

Future 5-6

Existing Wells 1-4

CAW ASR Injection/Extraction

Carmel Valley Pump Station

Bri

ne

Pip

elin

e

MRWPCA Existing Outfall

Salinas Valley

Return

OUTFALL MIXING CAMBER

1

CAW Desal Plant

GWR ADVANCED TREATMENT

GWR ASR Injection

Wells

Seaside Groundwater

Basin

CAW Water Distribution System

CAW Seaside

Wells (non-ASR)

Seaside Monterey

Pacific Grove

Pebble Beach

Carmel Carmel Valley

CAW Water Distribution

System

Forest Lake Reservoirs

MPWSP GWR ASR SYSTEM SCHEMATIC INJECTION WITH MP&PS

~435’ HGL

~300’ HGL

Monterey (ASR) Pump Station

36” Transfer Pipeline

Future 5-6

Existing Wells 1-4

CAW ASR Injection/Extraction

42”

Sup

ply

Pip

eli

ne

Slant Well Intake System

Carmel Valley Pump Station

CAW Carmel River Wells

4

Crest Tank & 16” Pipeline

~560’ HGL

Existing PRV Set ~310’ HGL

CAW Desal Plant

GWR ADVANCED TREATMENT

GWR ASR Injection

Wells

Seaside Groundwater

Basin

CAW Water Distribution System

CAW Seaside

Wells (non-ASR)

Seaside Monterey

Pacific Grove

Pebble Beach

Carmel Carmel Valley

CAW Water Distribution

System

Forest Lake Reservoirs

MPWSP GWR ASR SYSTEM SCHEMATIC EXTRACTION WITH MP&PS

~435’ HGL

~300’ HGL

Monterey (ASR) Pump Station

36” Transfer Pipeline

Future 5-6

Existing Wells 1-4

CAW ASR Injection/Extraction

42”

Sup

ply

Pip

eli

ne

Slant Well Intake System

Carmel Valley Pump Station

CAW Carmel River Wells

5

Crest Tank & 16” Pipeline

~560’ HGL

Existing PRV Set ~310’ HGL

MONTEREY PIPELINE

AGENCY COORDINATION

Jurisdictional Agencies and Entities

• City of Pacific Grove

• City of Monterey

• Presidio of Monterey (US Army)

• Caltrans (3 crossings)

• City of Seaside

• Monterey Fairgrounds

• Division of Drinking Water

PIPELINE CONSTRUCTION PREPARATIONS

DUCTILE IRON PIPE

Features

• Extra Strength, 250 psi

• Restrained Joints

• Polyethylene Encasement

• NSF 61 Lining

• Supplemental Casing on Bridge

• American Made

• AVV Valves

• Isolation Valves

• Blow Off Drains

PIPELINE CONSTRUCTION 1

PIPELINE CONSTRUCTION 2

HWY 68 PIPE BRIDGE

EXISTING BRIDGE NORTH VIEW AT FAIRGROUNDS EXIT

EXISTING BRIDGE SECTION

HWY 68 SECTION VIEW

SITE PLAN

CONCEPT 1: STEEL TRUSS

CONCEPT 2: PIPE ON CONCRETE GIRDER

CONCEPT 3: CONCRETE BATHTUB W/RAILS

BRIDGE ARCHITECTURAL LIP

BRIDGE ARCHITECTURAL LIP DETAILS

Bridge Deck

Sidewalk/Railing

REVISION 3.1: ARCHITECTURAL LIP & RAIL BAR

ARCHITECTURAL PROFILES

Lower Profile Higher Profile

ARCHITECTURAL PROFILE DETAILS

Lower Profile Higher Profile

REVISION 3.2 – FINAL DESIGN

Bridge Security Gate

EXISTING DECORATIVE BRIDGE WALL

GEOLOGIC HAZARD MAP

STRUCTURAL DETAIL 1

STRUCTURAL DETAIL 2

STRUCTURAL DETAIL 3

CALTRANS ENGINEERING DRAWING EXAMPLE

SEISMIC PIPE JOINTS

HWY 68 PIPE BRIDGE CONSTRUCTION ABUTMENTS

HWY 68 PIPE BRIDGE CONSTRUCTION CENTER PIER

HWY 68 PIPE BRIDGE CONSTRUCTION BATHTUB GIRDER

Embedded video

HWY 68 PIPE BRIDGE CONSTRUCTION PIPE & CASING

HWY 68 PIPE BRIDGE CONSTRUCTION GATE & GRATING

RECOGNITION

THANK YOU

QUESTIONS?